Jacquard embroidering-machine.



No. 806,254. PATENTED DEC. 5, 1905. A y L. HBRZOG. I

JAGQUARD EMBROIDERING MACHINE.

APPLIQATION FILED AUG- 4,.1903.

2 SHEETS-SHEET 1.

Fig 1.

Wimawa I Eve/2Z0):-

'PATENTED DE0.5,1905.

L.-H ER1Z0IG,- JAGQUARD EMBROIDERING MACHINE.

APPLICATION FILED AUG. 4,1903.

2 SHEETS-SHEET 2.

ive. 806,254.

To all whom/it may concern: V

' Be it known that I, LOUIS HERZOG, a citizen UNITED STATES .IPATENT OFFICE.

OF STIGKEREI FELDMI iHLE, VORMALS LOEB, SOHOENFELD 82 130., OF

RORSGHAOH, SWITZERLAND.

JACQUARD EMBROIDEFflNG-MAGHINE.

Specification of Letters Iatent.

"PatentedDeo. 5, 1905.

Application filed August a, 1953. stra n). 168,227.

of the Republic of- Switzerland, residing at .Rorschach, Switzerland, haye invented new and useful. Improvements in Jacquard Emof which the following.

broidering-Machines,

isa specification.

In embroidering-machines with a quard mechanism-for instance, in such as is disclosed in British Letters Patent No. 21,361,

A. D. 1894-it frequently happens that the so-called directing-shaft, which in conjunction with other parts of the jacquard mechan: ism effects the forward and rearward motion of the embroidering-frame, is by some accident or hitch brought out of its proper operate position.

The result of this is that the said shaft will obstruct other working parts,

- so that if the machine is. not at once stopped these parts will bebroken or otherwise in- I jured, whereby troublesome repairs and stoppage ofthe machine for a considerable time are the result.

The subject of myinvention is a mechanism whereby such breakdowns may be avoided.

The essential feature. of the invention consists in alever being mounted on the said directingshaft of the jacquard mechanism, which lever travels between two stops standing incommunication with the ordinary dis- 'engaglnggear.

The i arrangement is such that when the directing-shaft for any reason 7 leaves its proper position its lever strikes against one or other of thestops, thereby acthe machine.

, a front elevation, partly in section.

tuating the disengaging-gear and stopping My invention is illustrated panying drawings, in'which Figure 1 is an end elevation of the machine;- Fig.2, a plan,-partly in section; and Fig. 3, a Fig. 4 is a sectionalplan corresponding to, Fig. 2, .but having parts of the mechanism in another position.

. 2 is the main shaft, on which are mounted the fast and loose pulleys 3 and 4. Above the latter'is a pin 5, secured to the framing 1 and forming the pivot for the belt-fork 6, in the the-notch 8-;o'f the-belt-fork 7, The rear-end 1 a rear arm 7 of whichis a notch 8.

9 isa pin loosely mounted in the framingi and carrying-the lever-arm 10 at one end, the

cam-shaped'end 1 1 of which lever engages in in the accom-v of the pin- 9 carries a second bent lever-arm 12, which butts against the rear end of the horizontal slide-plate. 13,10cated above the framing 1.

14 is a rocking bar located below the table land mounted at one end on the pin 9 and at the other end in an arm 15. The front end of against the lever 12, the other end of said bar 14 projecting above the table and being secured to a second arm 17 connected to which is a cord 18.

' The slide-plate 13 is slotted at 19, the slot being enlarged laterally at 20. The, plate receives its guidance partly from an arm 21,

through which it passes, and partly from a vertical pin 22, projecting through the slot 19, and rests upon the boss of a double-armed per and shorter'arm 24 of this lever 23 has an upturned end 25, which enters the slot 19,

Their front ends have ends are secured in the movable eyes 31 of a double-armed lever 32, pivoted to the table 1 in such manner that the slide-rods are positively connected with each other by the lever 32. A

33 and'34 are stops secured on the rods I 35 is the vertical directing-shaft mounted in the table 1 and receives its oscillating motion from the cam-disk 39 by means of the crank 36, to which said shaft is frictionally secured, connecting-rod 37 and cam-lever 38. 40 is alever-arm secured to the bottom of the shaft 35 and having lugs 41 reciprocating between the stops 33 34, afiixed after careful adjustment on the rods 28 29, respectively, the arrangement being such that thelever 40 in its terminal positions lightly touches the stops.

- On that part of the shaft 35L projecting known' 'manner." Thelevers 45 receive their/ff oscillating motion from the rods 46, actuated by the jacquard card, the claws 47 engaging with one of the pins 42 of the lever 43, and thus reciprocating the frames 44, the racks 48 of which mesh with the pinions 49, which on motion of the horizontal slide 50 are thus turned in one direction or the other, so causing advance or retreat of the mechanisms actuating the embroidering-frame. In existing machines of this type, of which United States Patent No. 528,632 is an example, the directing-shaft is frietionally secured to or in its operating arm or crank 36. Now the present invention lies in mechanism to stop the machine when slip or other abnormal movement of the directing-shaft 36 shall take place. Should it occur that the directing-shaft 35 through any cause becomes displaced out of its normal position by a slip at its joint to crank 36, it is thus impossible that the clawlever 45, actuated by the rod 46, can come into engagement with the pins 42. Thus if the machine is not stopped at this moment some portion of the mechanism will be damaged, usually the claw-lever 45, shaft 35, or frame 44 being broken. The operation of the device in such case is the following: In ordinary working of the machine the parts occupy the position shown in Figs. 1 to 3.

If, however, the shaft 35 becomes rotated with regard to crank 36 for some reason, the normal travel of the lever 40, secured to its bottom end, will be lengthened in one direction or the other, depending upon the direction in which the shaft 35 has been displaced.

' The lever 40 will thus strike one of the stops 33 34 (in Fig. 4 the stop 34) with one of its lugs 41, and will thus push it and its rod 29 V in the direction of the arrow, Fig. 3. The

rod 29 with its knob will thus draw the double-armed lever 23 and cause it to turn, whereby the end 25 of the shorter arm 24 will leave the recess 20 in the plate 13, so that the latter will be pulled back by the spring 27 The levers 12 10 will thus move backward in the direction of the arrow, Fig. 1, and the cam 11 of the lever 10 will turn the belt-fork 6 into the dotted-line position, Fig. 2that is to say, the belt will be thrown onto the loose pulley 4, Fig. 4, and the machine thus stopped. The same result will ensue when the lever 40, owing to displacement of the shaft 35, exceeds its normal extent of travel in the opposite direction to that above stated that is, so that it strikes against the stop 33. In this case the rod 28 will be pushed in the direction of the arrow in Fig. 3, whereupon by means of the double-armed lever 32 and -rod-29..the end 25 of the double-armed lever 23 will again be released and the machine consequently stopped in the manner already described. By pulling the cord 18 p the parts can thenagain be brought into their original position, as shown in Figs. 1 and 2.

Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, I declare that what I claim is 1. In an embroidering-machine, a jacquard mechanism comprising a directing shaft, means to oscillate the same comprising a camshaft and connections, said cam-shaft carrying a fast and a loose belt-pulley; in combination with a belt-shifter and mechanism to operate the same to shift the belt from the fast onto the loose pulley, said mechanism set in operation by abnormal movement of the directing-shaft.

2. In an embroidering-machine, a jacquard mechanism comprising a directing shaft, means to oscillate the same comprising a camshaft and connections, said cam-shaft carrying a fast and a loose belt; in combination with a belt-shifter and mechanism to operate the same to shift the belt from the fast onto the loose pulley, said mechanism set in operation by abnormal movement of the directingshaft, and hand-operated means for operating the belt-shifter to shift the belt from said loose pulley back onto said fast pulley.

3. The combination with the driving-shaft of a jacquard embroidering-machine, the fast and loose belt-pulleys on said shaft, the directing-shaft of the jacquard mechanism and connections between the two shafts to oscillate said directing-shaft, and abelt-shifting lover; of a spring-actuated lever for operating the belt-shifting lever, means to lock the former lever against the stress of its actuating-spring, and mechanism for releasing the actuating-le- -ver operated by the directing-shaft whenever rotated beyond its normal extent.

4. In an embroidering-machine, the combination with the directing-shaft 35 of the jacquard mechanism, the radial arm thereon having lugs 41, the belt-shifting lever, its actuating-lever, a radial arm on the fulcrum-pin of the last-named lever, a spring-actuated slide abutting against said radial arm and a locking deviceto lock the slide against moveinentunder the stress of its spring; of mechanism-operated by the lugs 41 on the arm 40 of the directing-shaft to release the slide whenever the latter shaft is rotated beyond its normal extent.

5. In a jacquard embroidering-machine, the combination with the directing-shaft 35 of the jacquard mechanism, the radial arm 40 thereon having lugs 41, the belt-shifting lever, its actuating-lever, a radial arm on the fulcrumpin of the last-named lever, a spring-actuated slide abutting against said radial arm, a twoarmed rock-lever carrying a lug on one of its arms adapted to engage a notch in the slide and lock the same against motion under the stress of its spring, two rods, 28, 29, having one end secured to the otherarm of said rocklever, a forked oscillatinglever 52, to the legs of which the opposite ends of said rods are secured, abutments 33, 34, "on the rods-28, 29,

the directing-shaft 35, means to oscillate the In testimonywhereoflhave signed my name same," and the radial arm 40 thereon having to this specification in the presence of two sub- ,lugs 41 adapted to impinge uponone or the I scribing Witnesses.

other of theaforesaid abutments33, 34, when Y said shaft isoscillateol in one or the other (11- Witnesses:

reotion beyond its normal extent; substantially MORI'I'Z VEITH, as and for the purposes set forth. r A. IJiEBERKNECHT.

LOUIS HERZOG, 7 

